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@sevenfactorial
scifi is when there's cubes. the more cubes there are the more scifier it is
Fantasy is when there's orbs. The more orbs there are the more fantasier it is
Oh y'all are gonna love this shit-
Any sufficiently advanced scifi is indistinguishable from fantasy.
All these cubes make an orb. All these orbs make a cube.
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Penrose Chainmail
Dr. T's World of Chainmail
He does other tessellations, too!
Set seeking another set for a bijective relationship.
Must be invertible.
vibes in my uni math classroom
i love saying that "galois acts on this space" etc, as though my bestie evariste is personally showing up and throwing stuff around
Anya is live and ready to show you everything. Watch her strip, dance, and perform exclusive shows just for you. Interact in real-time and make your fantasies come true.
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My friend and I...
Have the same co-advisors
Are at about the same point in our PhD progress
Had overlapping preferences for what subjects to include in our written comprehensive exams and similar timeline goals for them so we decided we actually just want to take the same exam at the end of summer
Are working on the same research project this summer (a grant our advisors+another prof have been working on)
So academic twinsies apparently
(Our plans for our dissertations are fairly different though.)
i love the way they worded this. that is, yeah. you're generally not supposed to "prove" something that is untrue
I know I have drawn this shape so often already, but the process of drawing it is so soothing.
And for that, I have drawn a kind of step-by-step guide how to draw that shape in the top of this drawing:
(from left to right: ) [sorry in advance if I make it sound more complicated than it actually is. If you want to draw it, I would advice you to focus more on these illustrations rather than on my gibberish-text.]
1. draw a 2-dimensional Cartesian plane - or, in other words: just draw a cross like depicted
1.1. mark 2 points on the y-axis/vertical line with same distance to the coordinate origin, then mark 2 points on the x-axis/horizontal line with the same distance to the coordinate origin. (The markings on the y-axis need to be farther away from the origin than the markings of the x-axis)
2. connect the 4 marked points like depicted above. This is a function plot of a tractrix. (it has two mirror symmetry axes. )
3. draw an ellipse and connect the two markings on the x-axis. This becomes a kind of "belt" for the pseudosphere (4th picture)
4. part the ellipse into whatever-amount-you-want of partings (like you would cut a cake) and slightly mark these.
5. now imagine you cut that shape horizontally on the outer surface. (In the 5th picture I depicted that with red-ish pen across the pseudosphere. ) -
6. then the cut shape needs to be "(shape) shifted". For that we use a set of marked points we did in step 4). Furtherly, we "cut" the ellipse open, and push one end of it to the top, and the other end to the bottom. (depicted in picture 6 )
7. Then we connect the rest to get that shape:
some neat oscilloscope patterns for the soul
While I’m in scanning hell pls enjoy this photo of my new drawing elliptic curve cryptography (下山虎). The tiger is wearing a family of elliptic curves among the stripes on his back
Anya is live and ready to show you everything. Watch her strip, dance, and perform exclusive shows just for you. Interact in real-time and make your fantasies come true.
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Hey students, here’s a pro tip: do not write an email to your prof while you’re seriously sick.
Signed, a person who somehow came up with “dear hello, I am sick and not sure if I’ll be alive to come tomorrow and I’m sorry, best slutantions, [name]”.
I mean, if someone wrote that to me, I’d probably believe they were sick.
“Slutantions” has me crying laughing
i once emailed my professor with a migraine. a mistake.
“I amsick will not to choir because i have a heache. i Hope its very and i am so sorry
love,
blue”
the subject line was “OW”
THE SUBJECT LINE IS THE BEST PART JSJFJSJDJS JUST IMAGINE GETTING AN EMAIL WITH NO CONTEXT OTHER THAN “OW”
As someone who has taught college, please send those emails because 1) We WILL believe that; no one would write that on purpose and 2) we need a laugh sometimes.
On the other side of this, once after getting taken to the ER by ambulance, I got an email from the professor whose class I’d passed out in, and the message had no text, just the subject line “you good?”
Reblogging for the last addition
Claritin makes me weird, but I have allergies so there’s about a month and a half block of time where I’m taking Claritin and am just weird most of the time.
Anyway, my last year of college, I got the flu or something in late March and was also taking Mucinex. I told my professor I couldn’t come to class one day by email except I couldnt think of what to say, so my medicated ass decided to make a Fry meme. I think it said something like “Not sure if I can go to class with a head the size of Texas, bottom text.” I didn’t think until the next day that it probably wasn’t socially-acceptable to tell your philosophy professor you weren’t coming to class via Tumblr style memes. When i got back to class, i found that she’d printed it out and taped it to the classroom bulletin board.
Oh shit you guys i turned on my WinXP laptop that I used to use back then.
IT WAS ON THE DESKTOP. THIS IS WHAT I SENT.
It’s even worse than i remember it
I laugh myself hoarse every time this post comes around, so here it is again.
Once emailed a professor from my hospital bed high on painkillers after a really bad car crash which my heart actually stopped the email “Dead cant class sory”
i was very sick over new years and one day i woke up to find i had emailed my manager in the middle of the night:
she said it was the most beautiful sick email she’s ever gotten
had a similar situation that inspired one of my older comics. they absolutely gave me shit for it when I got back to the office.
yes officer i can be trusted with sequences
From MathMatize on Twitter.
I crocheted a series of hyperbolic planes and strung them up into a garland. Each module is one more round than the one before, and each round has twice the stitches as the round before.
I made eight iterations; the largest one took an entire skein of cotton yarn. I really liked how this shows the change in curvature as cross section of the plane expands.
Anya is live and ready to show you everything. Watch her strip, dance, and perform exclusive shows just for you. Interact in real-time and make your fantasies come true.
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Venus just lost its last active spacecraft, as Japan has officially declared the Akatsuki orbiter - which took the clearest ever picture of the planet, as seen below - dead
Wanted to check this was legit since it's not like other photos I've seen, so here's a caption pulled from this article:
Akatsuki's IR2 camera acquired this view of the night side of Venus. Infrared energy from hot, mid-altitude clouds shows up bright, while higher clouds that block the heat appear dark. The dark sawtooth at center appears to be a turbulent boundary. The planet's sunlit crescent is overexposed at upper right.
JAXA / ISAS / DARTS / Damia Bouic
I think my favorite things in math are all the strange and unusual Spaces. I just want to study weird spaces.
